Using limited materials such as cardboard and duct tape, racers must create a vessel that can outsplash the competition as they race along the creek to the finish line — all without sinking.

Police were alerted to a sinking boat in Tauranga Harbour at 2.45pm.

First conceived by the French inventor Ernest Bazin, this experimental kind of vessel aimed to revolutionize maritime travel by gliding above the waves on massive rotating wheels rather than ...